What should the average citizen of that country do in that case?

Cooperate with their fellow citizens and fix their banking system, rather than trying to grab as much as possible for themselves?

>Cooperate with their fellow citizens and fix their banking system

That's exactly what Bitcoin was for.

I don't know where you live, but most places it's the banking system which fixes the citizens, not the other way around.

Only way I imagine being able to fix a bank is with a brick through the window. It's why one level up from where I'm at banks are closing their physical locations, keep no cash, and only have people for 1-2 hours in the morning when only the most obedient are awake and not occupied.